Wuhan made the world's largest RV reducer delivery load

Yu Yunqing (first from right), chairman of Wuhan Jingli Reducer Co., LTD., introduces the RV reducer to Professor Yao Damao and others of Hefei Institute of Physical Sciences, Chinese Academy of Sciences.

The world's first 45 ton load cycloid gear reducer was officially delivered in Wuhan Jingli Speed Reducer Industrial Park. The customized Party A is Hefei Institute of Physical Sciences, Chinese Academy of Sciences.

It is reported that this cycloidal gear reducer (also known as RV reducer), designed to be used as the "joint" of the multifunctional mechanical arm in the International Thermonuclear fusion experimental reactor, is the world's first RV reducer with maximum load set of high precision, large reduction ratio and super torque in one, marking a major breakthrough in the field of RV reducer.

In the workshop of Wuhan Essence Reducer Co., LTD. (hereinafter referred to as "Wuhan Essence"), a black cylindrical 45T cycloid gear reducer with a diameter of 1.1 meters and a height of 1.3 meters is being tested by power. It will be installed on an 11-meter-long robot arm to act as a "joint" in a closed nuclear fusion reactor with a high magnetic field and high temperature, said Yao Damao, a professor at the Hefei Institute of Physical Sciences of the Chinese Academy of Sciences, which ordered the machine.

Professor Yao Damao said that the ITER Project is one of the largest international scientific research cooperation projects in the world. It seeks to solve the future energy problem of mankind by conducting nuclear fusion research through global cooperation. The ITER device is a superconducting tokamak, colloquially known as the "artificial sun," capable of generating large-scale nuclear fusion reactions. China is participating in the program along with the European Union, India, Japan, South Korea, Russia and the United States. The Hefei Institute of Physical Sciences of the Chinese Academy of Sciences is responsible for more than 80 percent of the ITER project's Chinese procurement. The research institute searched for Wuhan Essence from all over the world.

Wuhan Essence Chairman Yu Yunqing introduced, cycloidal gear reducer is the core parts of industrial robots, equivalent to the human shoulder, elbow, knee and other important force and precise operation of the "joint", its core technology has been foreign monopoly in the past. As a state-level "specialized, refined and new" key enterprise in 2022, Wuhan Essence began to research and develop cycloidal gear reduction machines since 2012, and now has 6 series of more than 300 varieties. These include the world's smallest cycloid gear reducer, developed in 2017, which weighs only 370 grams, carries 45 newton-meters and has an accuracy less than one-twentieth of that of a human hair, and is applied to high-end medical robots.

Yu Yunqing said that because of the high load weight, high precision, high temperature radiation resistance and other harsh requirements, their technical team began to work for more than three years. From the material selection link, continuous destructive test. After hundreds of failures and nearly 50 trials we found the right material. (travel around)